Home / 1,330,893.90-1,996,340.85-910,989.90

Finding the Fourth Proportional to 1,330,893.90, 1,996,340.85 and 910,989.90

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Solution

The fourth proportional to 1,330,893.90, 1,996,340.85 and 910,989.90 is: 1,366,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,893.90 : 1,996,340.85 = 910,989.90 : x
  2. Step 2: Convert to fraction form
    1,330,893.90/1,996,340.85 = 910,989.90/x
  3. Step 3: Cross multiply
    1,330,893.90x = 1,996,340.85 × 910,989.90
  4. Step 4: Simplify right side
    1,330,893.90x = 1,818,646,351,307.42
  5. Step 5: Solve for x
    x = 1,818,646,351,307.42/1,330,893.90
  6. Step 6: Final answer
    x = 1,366,484.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.